<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8" />
		<title>v-on:mouseover</title>
		<style>
			#div {
				background-color: red;
				width:300px;
				height:300px;
			}
		</style>
		<script src="../../static/js/vuejs-2.5.16.js"></script>
	</head>

	<body>
		<div id="app">
			<div @mouseover="fun1" id="div">
				<textarea @mouseover="fun2($event)">这是一个文件域</textarea>
			</div>

			<!--<div onmouseover="divmouseover()" id="div">
				<textarea onmouseover="textareamouseover()">这是一个文件域</textarea>
			</div>-->
		</div>
	</body>
	<script>
		//view model
        /**
		 * @事件名称  就是  v-on:事件名称的简写方式
		 * @mouseover它就等同于v-on:mouseover
         */
		new Vue({
			el:"#app",
			methods:{
				fun1:function(){
				    alert("鼠标悬停在div上了");
				},
				fun2:function(event){
				    alert("鼠标悬停在textarea上了");
                    event.stopPropagation();
				}
			}
		});


		//传统的js方式
		function divmouseover(){
		    alert("鼠标移动到了div上了");
		}

		function textareamouseover(){
		    alert("鼠标移动到了textarea上了");
		    event.stopPropagation();
		}
	</script>

</html>